Hoop-machine.



w. GLADER.

HOOP MACHINE.

APPLIOATIOK IILED OUT. 14, 1911. 1,071,733.

a Bantu-SHEET 1.

jkurrzzZar Patented Sept. 2, 1913.

W. GLADER.

, HOOP momma APPLIOATIOKTILBD OCT. 14.1911

Patented Sept. 2, 1.913.

8 SHEETS-SHEET 2.

W Q Jill 6 07' W. 'GLADER.

HOOP MACHINE.

211101121011 mum OCT. 14, 1911.

Patented Sept. 2, 1913.

SHEETS-BEBETB.

( 6x22665653 m 5 z W. GLADER:

HOOP MACHINE.

APPL IOATIOR FILED 061214, 1M1. 1,071,733. ?atented Sept. 2,1913.

8 SHEETS-SHEET 4.

39 Jay 4 W ZI JIII W. GLADBR.

HOOP momma AEPLICATION FILED 09114.1911, 1.071 733. Pakenteri Sept. 2, i913, 3 EHBETS-SHBEIT 7.

, ofa strip ofimetnl to be'used as ahoop,

QEITEB A? ii??? GFFIGE.

WILLIAM QLA'DEE, OE CHIEEGC; ILLINQIS, AESIGE6R TO J'ABSEE. "W7. BRAAIHAQBD, OF PIETSBTUBGE. PENNSYLVANIA.

Sneaificatinnuf Letters Zatent.

xnpiirationifi'ied Gotcha: I4; 1% U.

32 Eli- 733 Patented. Sept. 2, 11913;. Serial 1%. server.

The wr'tam 'may concern-.-

Be it known that; Ii, VVILLIA-M Simmons, 2; citizenof the United States, residing at (Shieago, in the county ofi'look and State of! Iflii'nois, hams invented certain new and usefull: Improvementsin Hoop-Machines, of which the fioliowing" is a specification.

My invention relates to lioop forming machines and has particular reference to a novel machine for forminga bead. on one such machine beingcapable of forming a bead of desired crosssectionincluding a; beadof circuliir'cross-seeoion, which" iattier is considered to-be prefierables Hbmtofibreg as far as I am; aware, the formation of the bend onthe edge of a; hoop stlrip has been universally carried out by'means of bending rolls, that is, the strip has been gassed through a series of bead forming rolls; the result being a head which has no undeiturned portion and which is in efloct merely" a bending back or bending over of one'edgeof the strip, the bent over portionof course, having a slight curve. In addiiiion to the unsatisfactory contour of the bead, and the comparatively slight advantags-gained thereby therehes been the additional disadvantage that in rolling the edge to secure the turning of the-bead the metal was slightly expanded thus elongating the having the bead. Unfortunately this elongation was on the wrong edge of the hoop, that is, the edge ot the hoophaving the head is always towerd the smsiler end of fihebenrei or keg. For this reason it' was necessary to serftirm an soditionai operation wliereby die hoop was stretched on they opposite edge with the consequent effect of weakening the entire hoop. Another disadvantage ofi the rolling operation arises from $efiollowing' conditions: It isdesir able, iirfoct necessary that the hoops should beast-end punched. prior't-o the bending opelation; Furtz'iermore, it Willbe understood that during (these van-ions operations-in conmotion.- mtdi on rolling of the bend the metal is stretched and restret'ohod: owing to irrwlmrities in gage of the. mete-1 strips- 158811 that the fined hoop when riveted and White being riveted is warped and sometimes entirely useless.

With this'general' explanation of the diffithe need on 21: flat metal strip by. the rolling process i will proceed to a description ofadvantages gained by the mechanism herein shown and described. First, in a machine of' the present construction the bond is formed simultaneously throughout the length oi the metalstrip, that is, the entire beadi is turned up in one operation by stampingor pressing. The remainder of the metal is mennwhile'rigidly held; Second, no elongation of the beading edge is encountered even though there be .a, variation in ,the gage of the metal, in fact, there will: be

sire-ble; Third, to provide-a; machine which while in a sense intermittent in action will permit oft-he development ofa speed of proing operation Fourth, to provide a machine which will automatically prevent the time; Fifth, to provide a machine having novel forming dies. Further" and more par ticular objects will appear hereinafter.

My invention will be more readily understood by reference to the accompanying drawings wherein-- F igure' 1 is a side elevation of a machine constructed according to my invention. Fig: 2 is also a side elevation taken from the re verse of the maohineshow-n in Fig; 1. Fig; 3 is a top plan. Fig. 4 is an end elevation of the receiving end. of the machine. Fig. 5 isa partial section on the line 55 of Fig. 1. Fig. ti-is anelevst'ionof thedischerg-ing endof machine. Fig: 7 is an enlarged de tail front elevation of the discharge end of machine showing the coiling mechanism. Fig; 8- is a, plan of the some mechanism. Fig. 9 is a plan of thefeed end of machine showing the clamp'and automatic sto F ig. 10 is-ir section on theline- 10 10 of Fig 9 Fig; 11 is a detail plan View of a fin ment of the dies, clamps and rolls at the de i'verv end of machine. Fig; 12' is an enlarged det-siii psrtiy in section, sizew-ing tho feedrolls,

culties encountered with the formation of' a slightcontraction, which contraction is dc- I insertion or more than one metal strip at :1'

duction equal to,,i' not greater than the rollclamp and die. Fig. 13 is a detail sectional elevation on a still further enlarged scale showing the dies and clamps with a hoop held between the clamps and the die about to advance to form the bead. Figs. 14, 15 and 16 are end elevations showing rcspcctively a plain band of steel, a hoop strip having an initial bend and a completed hoop strip with a perfect bead formed thereon, and Fig. 17 is a plan of a length of metal formed into a hoop strip having the bead thereon.

Referring more particularly to the draw" ings it will be seen that on the frame com posed of standards 20 and intermediate and upper connecting members 2122 and 23, I mount in bearings 24, 25 and 26 a longitudinally extending cam shaft 27. Power is supplied for the operation of this shaft by means of the large gear 28, with which meshes a pinion 29, keyed to afshaft 30. Also keyed to the shaft 30 is a bevel gear 31, which in turn meshes with a bevel pinion 32 rigid with power shaft 33, which shaft carries tight and loose pulleys 34 and 35. Mounted on the cam shaft 27 is a plurality-of cams. There being four sets of such cams and as each set is a duplicate of the other I will describe but one thereof. The cam 36 is keyed to the shaft 27 and is arranged to cause the oscillation of a lever 37, fulcrumed at 38 on a standard 39 which is in turn rigidly secured to the upper connecting member 22,. This lever andv its connecting parts causes the reciproca tion of the upper clamping member later to be described. A cam 40 is also keyed to the shaft 27 and is arranged to cause the oscillation of rocker 41, fulcrumed on a shaft 42 and arranged to cause the reciprocation of the bead forming die plate, which also will be later described.

In order to provide for the feeding of the strip of metal into the machine, I pro vide a plurality of rolls 43, 44. These rolls being pinned to shafts 45 and 46, shaft 46 having on one end the bevel pinion 47 meshing with the gear 48 keyed to shaft 30, also on shaft 46 as shown in dotted lines in Fig. 2 is a pinion 49 meshing with a further pinion 50 and keyed to shaft 45. The shaft 46 on its end adjacent to the roll is mounted in bearing 51,, which is vertically adjustable by means of a set bolt 52. The shaft 45 is held at the roll end in a bearing 53, which is arranged for limited vertical movement in guides 54 against a compression spring 55. This is best shown in Fig. 12-.

1 will now describe my novel feeding mechanism by means of which the bands of steel are fed into the machine singly. This includes a bracket 56 secured to one of the standards 20 and carrying roll housings 57 and. 58 Within which are carried the rolls 59 and 60 arranged to cause the initial bending or edge turning as shown in Fig. 15. These rolls are connected to the power shaft 33 by means of a square shaft 61 and suitable square couplings loosely fitted. This is arranged in a well known manner to admit of a vertical adjustment of the rolls without .realinement of shaft. The two rolis 59 and (30 are geared together by means of the gears 62. A sprocket is mounted on the lower roll shaft and by means of a sprocket chain 63 and a further sprocket wheel mounted on the shaft 6% motion is transmitted to the lower of two timing rolls 65 and 66. Thesetwo rolls are arranged for operation in unison by means of intermeshing gears 67.- The up per roll 66 is arranged for limited vertical movement by reason of its being mounted in bearings carried in one end of a rocker 68 pinned to a stub shaft 69 mounted in a bearing 70 projected upwardly from the bracket 56. To the outer end of'shaft69 is pinned a lever 7O" having a link or rod 71 connected thereto, which link has at its lower end a threaded portion on which adjustingniits 72 are placed. A lever 73 having a projecting lug 74 is provided with an aperture through which the rod 71 projects. It will he -seen that the lever 73 is fulc'rumed at 75 to a portion of the standard 20 and at its free end is. provided with an anti- .friction roll 76 contacting with a can), 77 rigidly secured to the cam shaft 27. .Upon

the rotation of the cam member the link 71 and its associated parts are adapted to be moved vertically, the anti-friction roller 76 on one end of the lever 73 being heldin engagement with the cam 7 7 by a contractile spring 78 secured by its ends to the lever and a portion of the frame.

On the lever 68 and projecting into line with its supporting shaft is an extension having an aperture therethrough within which a stop piece 79 held in adjusted position bymeans of a set bolt 80. trough 81 is provided and through this trough I arrange. an opening 82 through which the stop member 79 is projected.

It will thus be seen that the upper timing rolls 66 and the stop member 79 operate contrariwise; that is, when the rolls 65-66 are in feeding engagement stop 79 is elevated and vice versa. It will also be seen that the elevation of the stop is momentary only. That is, just a suflicient length of time elapses' to permit of the timing rolls to feed a hoop blank into the bite of theforming rolls 59 60: The stop 79 will then drop and ride upon the top 01 the infeeding hoop blank. In this manner it will A guide be seen that theoperator cannot by any means feed a hoop blank into the machine until the preceding hoop blank has begun its passage out of the machine. He may iroiect the boo between the feed rolls l the ilete it?) sunoriell P l l m A which are at that time separated and to a point against the edge of the stop Ti), where the hoop blank will remain until the stop 79 is raised, the roll 6 is lowered and the hoop blank fQLl into the bite of the next ronseculive rolls.

i will now describe the clamp by means of whirh the strip securely heltl While the pressing or stnmpin of the die takes place. As heretofore LlQhCIfiKXl the lever 37 which is mounted on the cross member 2:! carries at its outer endv by means of 9!. pin 83. an adjustable Einl; 84, oonneetetl to apertured lugs integral with the upper clamping member 86. This clamping member is held in proper relation by means of projecting bolts 8? seated in slots in the clamp. In order to provide for the reception of dliltl ent widths of hoop blanks I Secure to the lower edge of the clamping member 86 a lllll'tl metal the This member 88 has a hardened steel insert 89 provided with a groove 90' ear its lower edge within which the bead i wrmed. This removable inenr ber 85 is ghoul-ed to the clamping member. 86 by means of the lug bolts 91. The lower ohnnping member 92 rests in a recess in the cross member 21 and is held in adjust/ed transverse position by means of clamp 93 and set bolts 94. Within this lower clamping member I seat a square strip 95 to provide a wearing eurface for the incoming strips of metal also as a stop against the thrust of the bead forming die. This strip is made square in order that it may be turned us it becomes worn. thereby providing four wearing siirfaces for the so me piece of metal. It will be seen by reference to Fig. 13 that the lower (lie extends to a point well beneath the upper die and has :1 mm away portion 96 within which the projection or shelf of the bead forming the extends when the die is advanced.

The head forming die of my invention comprises it plate of hardened. steel extending from end to end of machine; oi though for ronvenience this may be mzule in sertione if desired. This die is composed of a body portion 97 having a lateral shelf DS- Q.) on. will edge. Midway between the two fumes of the (lie 37 and the base of the ebelves )R-99 I provide seinirireular grooves 100 101. These are in reality the beznlforming grooves and. shown Fig. 12!, wow the etrip of metal to be W. and turned U'Hl on itself. The two edges are illent il-nl in (ilf'fltll to provide two dies for the some iece of metal. ihis (lie is held in p :ition y humans of a s ump 102 suitably bolted to the ieeiprowtmg (lie plat-t iUB. If

girl-ferret e ii? nienilmf i on a lin r 1' for voml'nienee.

may be le'll i if iiesirerl in order to reet or change the nlinement of the (lie. The i i may be seated. This part 1 Fig.

uitable. sl dewnys 105 formed as :1 mm M toe standards 2b and is guided by the l'wwsr the feed rolls. Th s lliQ pint truotorl position by means oi a. plurality of coiled contractile springs l0? shown in The reriproczition oi (lie iinte brought about by the oscillation of the arms 41 having the le el it projecting; therefrom. For convenimve i provide weer lates 1418 on the s'ontaeting parts.

On the ileiiverv side of machine I arrange housings ltll--ll ozirrving rolls mounted in the usual n'iziinier. There on: two sets of rolls in oriler to provide for carrying the hoop blank own fron'i the maohine zi Sullieienl distance to permit of (roiling, if but one set. of rolls were used this set of rolls might be removed so for that a short hoop blank might not be engaged thereby when being delivered from. the machine. Th" e I'Ulla' contained in housings lOtP-lfl) are geared together and arranged for operation in unison by means of sprorltets anti t-hain ill. (in the outer housing; ill) I mount a bracket 1.12 carrying it costing 113 within which a threadedv shaft 114- is held. .Thie shaft is provided with a crank 115 and on the free end of the shaft is mounted a. block 116 having a portion (:ut-otl' diagonally. Hinged to the misling 113 is a. swinging guide plate or strip 11? held against the oiagornil portion of the block it? by the spring ll8. it will be seen that by rotation of the shalt N4 the bloel: lli in nils'iinc'eil or retracted. thus changing the Angle of inclination of the guide 12?. As the hoop blank is tell from the rolls lllii- -llll its zui- Vance end mutants the guide 1 I? will t1 benil is given to the horn) blank. The extent of bend or s ze of the circle is nontrolled by the inclination of the guide ill. will be seen friun Fig. the upper rolls ozii'riml in the housings are grooved asnt iii) to 34'?" commoclate the previously 'lfil'lt'llili bend on the hoop blank.

It will be unileretooil the the t d roll throughout; the nan-hint 11 heretofore lescribed are rootinuousl u in rotation and that therefore. it stop must be provided in oiiier to local-v the hoop blank in noel-thin to be dumped and receive the heal. Such ii stop is how'o in Figs. l ntl 2. The fipft'iLlOil of lllls stop is much the wine that deseribeiil in eonneetion with the to; ill. A com i3 mooted on the mini zll lft 2?. which Pam on mote ti lever 1* foivrinnmi in. {13% and operwlnch .inli in pivoted at 12 having a i ei-tail therein on on $3. portion member 19 5 it; ernrel nting :1 link to 2'. resting linings sorreapomiimr oi" the frame. A stir to the member 1 by means of bolt 3" i: wil he un that by $5") I t' that the. visa}; we l the delivery rolls and will immediately after the escape of the hoop blank drop back and ride thereon ready to drop off the receding end of the'out-going hoop blank and into the path of the incoming hoop blank.

The operation of my machine is as follows: rolls are put into operation. A strip of metal cut to suitable length is placed in the guide-trough, being passed between the rolls 65-66, which are then separated and being arrested by the stop 79 which is then in depressed position projecting through the opening 82. By means of the cam 77 stop 79 is lifted and the rolls 65-66 are brought into feeding engagement with the strip of metal which is fed forward between the bending rolls 5960. As soon as these rolls engagethe strip the cam operates to lower the stop and separate the timing or in-feeding rolls 65-66, the forward feeding of the strip being accomplished by the preliminary bending rolls. The strip advances, passing successively between the several pairs of rolls until its leading end encounters the stop 1.26. Practically simultaneously with the arresting of the strip the clamp is depressed, the train of rolls43-44 turning idly on the surface of the strip. The die plate carrying the die 97 is then advanced under the action of its cam, turning the bent edge of the metal over and completing the formation of the head by a single continuous movement. During the bending. feeding and bead-forming operations on the en gaged strip the operator places in the receivingend of the machine another strip which however, is held back by the stop 79. Instantly when the stop 126 is raised, the

pressure of the clamp is released and the beaded strip is fed out of the machine. Simultaneously the stop 79 is raised and a new strip is fed into the machine.

It is obvious that while the several instru mentalit'ies herein described are preferably conjointly used, some of them may be dispensed with, or instrumentalities of a different form or construction substituted therefor. For examplethe timed feeding rolls might be dispensed with and the strip of metal fed directly into the grasp of the bending rolls; or the preliminary bending rolls might be omitted or be substituted by a pair of dies for slightly lip-turning the edge of the metal so as to insure the action of the bead forming dies. So too, the stop might be dispensed with and the train of feeding rolls thrown out of action during the operation of the bead forming dies.

I claim:

1. In a heading machine, the combination wit means for feeding a strip of metal lengthwise, means for clamping the strip. and a stop engaging with one side edge of the strip to prevent sidewise movement Power is applied and the train ofthereof when held by the clamping means, of means for curling one marginal side edge of the strip to form a bead extending throughout the length thereof, said curling means including a horizontally reciprocating die having a bead forming cavity therein to engage and curl the edge of the strip in forming the bead thereon, substantially as described.

2. In a beading machine, the combination with means for feeding a strip of metal lengthwise, means for curling one marginal side edge of the strip, means for clamping the strip, and a stop engaging one marginal side edge of the strip when being clamped to prevent side-wise movement thereof, of a horizontally reciprocating die engaging with and curling the partly curled opposite marginal side edge of the strip to form a bead, substantially as described.

3. In a heading machine, the combination with means for feeding a strip of metal lengthwise, means for clamping the strip of metal, means engaging one marginal side edge of the strip to prevent sidewise movement thereof when between the clamping means, of a horizontally reciprocating die having a bead'forming cavity therein, said cavity engaging with the opposite edge of the strip to curl said opposite edge and form a bead on the strip when the die is reciproeated, and means for reciprocating said die, substantially as describe 4. In a beading machine, the combination with a bead forming mechanism having means for clamping the top and bottom surfaces of strips of metal, and means engaging with one side edge of metal strips held between the clamping means to curl said edge into a bead. of means for successively feeding strips of metal to said clamping means, and means for partly bending the said edge of the strips into beaded form during the forward movement thereof into position between the clamping means, substantiallyv as described.

In a heading machine, the combination with feed rolls arranged to deliver strips of metal lengthwise, bending rolls arranged to curl one marginal side edge of the strip during the lengthwise movement of said strips,

clamping means into which said partly beaded strips are fed by said rolls, and bending means alongside said clamping means arranged to engage with and curl the bent edge of said strips into a bead extending throughout the length of said strips; substantially as described.

6. In a beading machine, the combination with feed rolls adapted to deliver metal strips lengthwise. bending rolls arranged to engage with and bend one side edge of said strip while passing lengthwise between said rolls, means for clamping said partly beaded strips into which the strips are delivered by th fetal rolls, and a reriprnratiug (lie engaging with the bent e lge of the strips nelrl by the Plum ing means to enrl the bent eilge HF the strip into a hollow beail. sub tantially as le ribe(l,

7. A beading marhine eumprising in roar bination a l'eelling tlOVHt. means for preliminarily beading a strip of metaL means for ailvaneiug sueh strip of metal between the elamping' mer'banisni of the ma hing me hanism t'or elampin; saiil strip. and means for simultaneously romnleting! a beatl on the bent edge of the .strip throughout the entire length of saiil strip while. held by said elamping meehanism. substantially a described.

8. A beading maehine omprisinr: in (tom bination a ba-e. a tim d stop on the feed eml of said inaehine. rolls arranged to give sairl strip a preliminary benil an l :ulvanee the Strip into the maehinm means for temporarily arrestin; lltltl elampingg sairl strip and means for simultanwaisly forming! a bead throughout the entire length of riaiil strip, substantially as lr-seribeil.

9. A beading maehine eomprising in (ombinatioi a base. timeil feeding attachments. lxmlingro is aral teeilinp; rolls. elainping means arranged to elamn the entire length of metal to be treated, one tllflt of th metal bein; let't free. a ieeiin-oeating' tllf, arranged to form a lXh'l on th ree edge of saiil strip of metal, and n ans t'or unrlaniping saiil (lies aiul delivering Sllltl strip of metal from sairl niaehine. substantially as ileaeribeil.

10. A beading ma rhine Comprising in eombina l a base, timeil t'eeiling means,

means'tor preliminarily bending a strip of metal: means for elamping}; the strip of metal throughout its length, continuously 5 operating st rip feeding rolls, anil means for 5 simultaneously forming a bead throughout; the length of metal held by Sflltl clamp, substantially as described.

11. .A beading machine eonipri ing in "()llllJlllllllUXl base a pair of intermittently 'operating feed rolls and a stop, said stop and said teed rolls being: arranged at the feeding encl of the maehine, continuously operating feeil rolls in the maehine elampingnieans arranged to art upon the entire length of meta held with n the machine, said eontinuously op rating rolls meanwhile slipping on the surfare of said strinianil an automatieally artuateil stop arranged to a1- rest a strip of metal at the proper point to be grasped by said elainps, substantially as (leseribed.

12. A beading machine comprising in eombination a base. intermittently aetuated feeding means, beniling means and a clamp, said clamp having a removable metal eon taeting member, a pair of ilies, one of which is removable ainl reversible, means for aetuating one of Stllil (lies whereby a bead is l formeil throughoztt the length of metal held by Stlltl clamp, aml means for feeding: sa'ul l length of metal from said machine. substantiallv as tleseribetl.

WILLIAM GLADER.

Witnesses: l (was l MURRAY, l T. D. BUTLER, 

